Mark Twain’s ancestral line:

I looked on WikiTree and this is the line they have. But, it did not show me any records so I could confirm the line. I did see that there was a book written on the lineage of Mark Twain, The Genealogy of Mark Twain by Lucius Marion Lampton, M.D. I am going to see if I can find a copy to look at and see if it is sourced.